Australian Curriculum · Year 9 Biology · Secondary

Year 9 Biology Lesson Plan & Curriculum Map

The biological sciences unit from our Year 9 Australian Curriculum (v9.0) science lesson plan: ecosystems, body systems and reproduction. Week-by-week lessons for 1, 2, 3 or 4 lessons a week, showing when each pace covers this unit; a dash means that pace is on a different science unit that week. For the full year, see the Year 9 Science lesson plan.

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Year 9 Biology learning map

Choose a term, then compare a lighter weekly plan with a more intensive schedule.

1 day/week · steady pace2–3 days/week · guided practice

February · Ecosystems, body systems and reproduction

Year 9 Biology — February Lesson Plan

Australian Curriculum v9.0 · Biological sciences

Week	1 Day/Week	2 Day/Week	3 Day/Week	4 Day/Week
February 1st week (Biology)	How Living Things Depend on Each Other 1. Living things depending on each other and their environment	How Living Things Depend on Each Other 1. Living things depending on each other and their environment 2. Relationships between organisms that are beneficial (mutualism)	How Living Things Depend on Each Other 1. Living things depending on each other and their environment 2. Relationships between organisms that are beneficial (mutualism) 3. Relationships between organisms that are detrimental (parasitism, competition)	How Living Things Depend on Each Other 1. Living things depending on each other and their environment 2. Relationships between organisms that are beneficial (mutualism) 3. Relationships between organisms that are detrimental (parasitism, competition) 4. Commensalism — where one organism benefits and the other is unaffected
February 2nd week (Biology)	How Living Things Depend on Each Other 1. Relationships between organisms that are beneficial (mutualism)	How Living Things Depend on Each Other 1. Relationships between organisms that are detrimental (parasitism, competition) 2. Commensalism — where one organism benefits and the other is unaffected	How Living Things Depend on Each Other 1. Commensalism — where one organism benefits and the other is unaffected Populations & Ecosystem Balance 1. What determines population size (abiotic and biotic factors) 2. How introducing a new species can disrupt the balance of an ecosystem	Populations & Ecosystem Balance 1. What determines population size (abiotic and biotic factors) 2. How introducing a new species can disrupt the balance of an ecosystem 3. Practice: a real case study of an introduced species disrupting an Australian ecosystem Energy & Matter in Ecosystems 1. How energy enters an ecosystem through photosynthesis
February 3rd week (Biology)	How Living Things Depend on Each Other 1. Relationships between organisms that are detrimental (parasitism, competition)	Populations & Ecosystem Balance 1. What determines population size (abiotic and biotic factors) 2. How introducing a new species can disrupt the balance of an ecosystem	Populations & Ecosystem Balance 1. Practice: a real case study of an introduced species disrupting an Australian ecosystem Energy & Matter in Ecosystems 1. How energy enters an ecosystem through photosynthesis 2. How energy flows through an ecosystem (food chains and food webs)	Energy & Matter in Ecosystems 1. How energy flows through an ecosystem (food chains and food webs) 2. How matter is recycled in ecosystems (decomposition, nutrient cycling) Disruption & Management of Ecosystems 1. How natural events can disrupt an ecosystem (e.g. bushfire, drought, flood) 2. How human activity can disrupt an ecosystem
February 4th week (Biology)	How Living Things Depend on Each Other 1. Commensalism — where one organism benefits and the other is unaffected	Populations & Ecosystem Balance 1. Practice: a real case study of an introduced species disrupting an Australian ecosystem Energy & Matter in Ecosystems 1. How energy enters an ecosystem through photosynthesis	Energy & Matter in Ecosystems 1. How matter is recycled in ecosystems (decomposition, nutrient cycling) Disruption & Management of Ecosystems 1. How natural events can disrupt an ecosystem (e.g. bushfire, drought, flood) 2. How human activity can disrupt an ecosystem	Disruption & Management of Ecosystems 1. How human management can help restore or protect ecosystems Body Systems Responding to Stimuli 1. What a stimulus and response are; how receptors detect stimuli 2. Overview of body systems involved in coordinating a response (nervous system, endocrine system) 3. Real examples of stimulus-response in the body (e.g. reflexes, hormone release)

March · Ecosystems, body systems and reproduction

Year 9 Biology — March Lesson Plan

Australian Curriculum v9.0 · Biological sciences

Week	1 Day/Week	2 Day/Week	3 Day/Week	4 Day/Week
March 1st week (Biology)	Populations & Ecosystem Balance 1. What determines population size (abiotic and biotic factors)	Energy & Matter in Ecosystems 1. How energy flows through an ecosystem (food chains and food webs) 2. How matter is recycled in ecosystems (decomposition, nutrient cycling)	Disruption & Management of Ecosystems 1. How human management can help restore or protect ecosystems Body Systems Responding to Stimuli 1. What a stimulus and response are; how receptors detect stimuli 2. Overview of body systems involved in coordinating a response (nervous system, endocrine system)	Body Systems Responding to Stimuli 1. Things that can go wrong with the nervous system (e.g. nerve damage, disorders) Negative Feedback & Homeostasis 1. What negative feedback means in a biological system 2. Working through a negative feedback example (e.g. body temperature regulation, blood glucose regulation) 3. Comparing the nervous system (fast) and endocrine system (slower but more sustained) in coordinating a response
March 2nd week (Biology)	Populations & Ecosystem Balance 1. How introducing a new species can disrupt the balance of an ecosystem	Disruption & Management of Ecosystems 1. How natural events can disrupt an ecosystem (e.g. bushfire, drought, flood) 2. How human activity can disrupt an ecosystem	Body Systems Responding to Stimuli 1. Real examples of stimulus-response in the body (e.g. reflexes, hormone release) 2. Things that can go wrong with the nervous system (e.g. nerve damage, disorders) Negative Feedback & Homeostasis 1. What negative feedback means in a biological system	Negative Feedback & Homeostasis 1. Practice: sketching a negative feedback loop diagram for a chosen body system Reproductive Cells & Organs — Animals & Plants 1. Structure and function of male and female reproductive organs and cells in animals 2. How fertilisation occurs 3. Structure and function of flower parts involved in plant reproduction; pollination
March 3rd week (Biology)	Populations & Ecosystem Balance 1. Practice: a real case study of an introduced species disrupting an Australian ecosystem	Disruption & Management of Ecosystems 1. How human management can help restore or protect ecosystems Body Systems Responding to Stimuli 1. What a stimulus and response are; how receptors detect stimuli	Negative Feedback & Homeostasis 1. Working through a negative feedback example (e.g. body temperature regulation, blood glucose regulation) 2. Comparing the nervous system (fast) and endocrine system (slower but more sustained) in coordinating a response 3. Practice: sketching a negative feedback loop diagram for a chosen body system	Sexual & Asexual Reproduction & Species Survival 1. Advantages of sexual reproduction for genetic variation and species survival 2. Types of asexual reproduction and their advantages/disadvantages 3. Comparing sexual vs asexual reproduction strategies directly Investigating an Ecosystem or Biological Question 1. Developing an investigable question about an ecosystem, body system, or reproductive process
March 4th week (Biology)	Energy & Matter in Ecosystems 1. How energy enters an ecosystem through photosynthesis	Body Systems Responding to Stimuli 1. Overview of body systems involved in coordinating a response (nervous system, endocrine system) 2. Real examples of stimulus-response in the body (e.g. reflexes, hormone release)	Reproductive Cells & Organs — Animals & Plants 1. Structure and function of male and female reproductive organs and cells in animals 2. How fertilisation occurs 3. Structure and function of flower parts involved in plant reproduction; pollination	Investigating an Ecosystem or Biological Question 1. Planning and conducting a safe, reproducible investigation, including risk assessment 2. Selecting equipment, recording data, and constructing representations to analyse results Term 1 Assessment & Consolidation 1. Revision workshop — ecosystems, populations and energy/matter flow 2. Revision workshop — body systems, negative feedback and reproduction

April · Ecosystems, body systems and reproduction

Year 9 Biology — April Lesson Plan

Australian Curriculum v9.0 · Biological sciences

Week	1 Day/Week	2 Day/Week	3 Day/Week	4 Day/Week
April 1st week (Biology)	Energy & Matter in Ecosystems 1. How energy flows through an ecosystem (food chains and food webs)	Body Systems Responding to Stimuli 1. Things that can go wrong with the nervous system (e.g. nerve damage, disorders) Negative Feedback & Homeostasis 1. What negative feedback means in a biological system	Sexual & Asexual Reproduction & Species Survival 1. Advantages of sexual reproduction for genetic variation and species survival 2. Types of asexual reproduction and their advantages/disadvantages 3. Comparing sexual vs asexual reproduction strategies directly	Term 1 Assessment & Consolidation 1. Term 1 assessment: ecosystems, body systems and reproduction topic test 2. Feedback session
April 2nd week (Biology)	Energy & Matter in Ecosystems 1. How matter is recycled in ecosystems (decomposition, nutrient cycling)	Negative Feedback & Homeostasis 1. Working through a negative feedback example (e.g. body temperature regulation, blood glucose regulation) 2. Comparing the nervous system (fast) and endocrine system (slower but more sustained) in coordinating a response	Investigating an Ecosystem or Biological Question 1. Developing an investigable question about an ecosystem, body system, or reproductive process 2. Planning and conducting a safe, reproducible investigation, including risk assessment 3. Selecting equipment, recording data, and constructing representations to analyse results	—

The learning framework

Anatomy of a focused lesson

Each session moves from a clear focus to guided practice and a quick check for understanding.

10 minutes

Recall and connect

Open with retrieval questions that link the week’s topic to earlier learning and a real Australian context.

25 minutes

Model and investigate

Work through the science with diagrams, models and worked examples, then plan, carry out or analyse a short investigation.

10 minutes

Check for mastery

Close with assessment-style questions that show what is secure and what to revisit next lesson.

Student learning toolkit

Resources for Year 9 Biology

Concept lessons

Clear, visual lessons on each Australian Curriculum biology topic.

Practice activities

Short questions and checks matched to each week’s focus.

Science inquiry

Investigation, observation and recording skills built into each unit.

Progress notes

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